but, economist maury harris is optimistic consumer spending will grow between 2.5% and 3% in the second half of the year >> what drives the economy forward are the incomes that have been created by recent economic activity. we have seen a pick up in corporate income and household income in the second quarter, not in every month, but in most months in the first half of the year, and those higher incomes provide the wherewithal for better spending. >> suzanne: or, perhaps, better saving, which it looks like more americans are doing. the personal savings rate grew during june, rising to 6.4% of after-tax incomes. >> jeff: consumers dipped into their savings to help drive u.s. auto sales slightly higher last month. bailed-out automakers general motors and chrysler each saw a 5% increase. but, g.m. says, factor out the brands its retiring, pontiac, hummer, saturn and saab, and sales were five times higher. ford sales rose 3%. july's biggest winners were korea's hyundai motor, which posted a 19% gain, and nissan, where sales were up nearly 15%. toyota lagged the market, sales there were down